refactor: remove pgvector runtime

harness/tests/test_solved_search_cli.py

@@ -13,8 +13,7 @@ from typer.testing import CliRunner
 
 from tht.cli import app
 from tht.memory import MemoryRecord, save_registry
-from tht.ports.vector import VectorReadUnavailable
-from tht.vectorstore.rest_client import VectorRestError
+from tht.ports.vector import VectorReadUnavailable, VectorStoreError
 from tht.vectorstore.store import VectorHit
 
 
@@ -31,7 +30,7 @@ def _cfg(tmp_path):
 
 def test_solved_search_degrades_when_vectordb_unreachable(tmp_path, monkeypatch):
     def boom(cfg):
-        raise VectorRestError("Vector REST non raggiungibile su https://v/ (rpc search_similar)")
+        raise VectorStoreError("Qdrant non raggiungibile")
 
     monkeypatch.setattr("tht.cli.vector_cmd.open_searcher", boom)
     res = CliRunner().invoke(
@@ -57,7 +56,7 @@ def test_solved_search_degrades_direct_vector_read_error(tmp_path, monkeypatch):
 
 def test_solved_search_degrades_human_mode(tmp_path, monkeypatch):
     def boom(cfg):
-        raise VectorRestError("Vector REST non raggiungibile")
+        raise VectorStoreError("Qdrant non raggiungibile")
 
     monkeypatch.setattr("tht.cli.vector_cmd.open_searcher", boom)
     res = CliRunner().invoke(